'Will You Apologize to the Girl?'

Tensions were boiling over at Hong Kong's main airport Tuesday night as clashes broke out between protesters and police with pepper spray and batons, reports Reuters. The violence took place as the airport remained essentially shut down for the second straight day over pro-democracy protests. The situation at the airport had remained relatively peaceful until Tuesday's clashes. No word yet on arrests or injuries. Details and related coverage:

• Undercover: One of Tuesday's flashpoints involved a man detained by protesters who was accused of being an undercover Chinese police officer. The man appeared to be unconscious at times and was detained for several hours before paramedics were finally able to evacuate him, reports CNN. Tuesday's violence may have been set off in part by police trying to help paramedics get to the man.
• Eye for an eye: Many protesters were wearing fake eye patches in solidarity with a young woman who was reportedly struck in the eye by a police projectile over the weekend. Details about her condition were sketchy, but protesters were chanting things like "return the eye," reports the Washington Post. When Hong Kong's chief executive addressed reporters, one asked, "Will you apologize to the girl?" per the New York Times. Carrie Lam did not.

• Travel chaos: The Hong Kong airport is one of the busiest in the world, and chaotic would be the word to describe the situation for travelers. The airport canceled check-in services, and though that wouldn't affect arriving flights, scores of those were being canceled as well, reports the AP. Stranded travelers were stuck figuring out where to stay and how they might get out. "I cannot blame them, because they are fighting for something," a Filipino traveler tells the AP of the protesters. "But then it's not right if we are the ones suffering."
• Ominous: Beijing denounced the protests as "terrorism," and troops appeared to be assembling in Shenzhen, which borders Hong Kong, reports the Guardian.
• Trump: Asked about the situation Tuesday afternoon, the president said, per MSNBC: "The Hong Kong thing is a very tough situation, very tough. We'll what see what happens. But I'm sure it'll work out. I hope it works out for everybody, including China, by the way."
• A primer: The Guardian recaps the reason for the protests, which began weeks ago over a controversial bill that would have made it possible to extradite people to China from Hong Kong. Since then, they've morphed into more general protests about civil rights and police brutality.

(More Hong Kong stories.)